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5.3: Enthalpy of Formation Balanced cquation for the reaction: CuSOseq) 4NH, Metal Cation Reactant [Cu(NHJESQ- Complexing Reactant Identification CuSo4 NH Molarity...

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5.3: Enthalpy of Formation Balanced cquation for the reaction: CuSOseq) 4NH, Metal Cation Reactant [Cu(NHJESQ- Complexing Reactant Identification CuSo4 NH Molarity OSM 60M 250mL 25 0mL Moles 0.0125mol 0.1Smol 210% 2002C Ta Average Tinit 20.5 %C 26.0 'C liazl ptee3b 5.5*C Mass of the solution (Mass elsticn Densityra mtutze Volumena mla ture) Density of the reaction mixture is 1.0I glmL 505 g 206.25 ] qal Moles Iimziliet Moles catapl AHaa O Imolcerbltempiaa Ietrd (Jlmol) Volume

5.3: Enthalpy of Formation Balanced cquation for the reaction: CuSOseq) 4NH, Metal Cation Reactant [Cu(NHJESQ- Complexing Reactant Identification CuSo4 NH Molarity OSM 60M 250mL 25 0mL Moles 0.0125mol 0.1Smol 210% 2002C Ta Average Tinit 20.5 %C 26.0 'C liazl ptee3b 5.5*C Mass of the solution (Mass elsticn Densityra mtutze Volumena mla ture) Density of the reaction mixture is 1.0I glmL 505 g 206.25 ] qal Moles Iimziliet Moles catapl AHaa O Imolcerbltempiaa Ietrd (Jlmol) Volume



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(a) Write a balanced chemical equation for the formation of 1 mol of $\mathrm{MgO}(\mathrm{s})$ from the elements in their standard states. Find the value for $\Delta H_{f}^{\circ}$ for $\mathrm{MgO}(\mathrm{s})$ in Appendix L. (b) What is the standard enthalpy change for the reaction of 2.5 mol of Mg with oxygen?


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